Thanks to member for the solution providing.
I have generate led blinking project for MDK ARM Keil uvision5.25 using STM32CUbeX IDE. Project is compiled successfully with 0 error and load successfully into STM32L151CB microcontroller via ST-LINK/V2 Programmer. In Keil, but i am facing problem 1)Project is not able to debug. When click on start/stop debug option than cursor is not come at main function starting line. 2)Code is not run during runtime.
Its kind request to you to provide me the solution to resolve these error as soon as possible.
Do you have Reset and Run option checked on Flash Download tab? It is unckecked by default.